Detachable box-cover.



W. IVIILERATHI DETAGHABLE BOX OOVEK 7 APPLICATION FILED 1:20.30; 1910.

Patented Mar. 11,191.31,

3 SHEETS8HEBT 1.

W. MILBRATHQ DETACHABLB BOX COVER. APPLICATION FILED DEC. 30, 1910 Patented Mar. 11,1913.

3 SHEETS-SHEET 2.

1/ @M @2 24 if W. MILBRATH. DETACHABLB BOX COVER.

APPLICATION TILED DEC. 30, 1910.

1,055,483. Patented Mar.11,1918.

3 SHEETS-SHEET 3.

"WELLER? IEZLBEBJA EH,

G3? LAKEFIELD, MZNHESQTB DETAGHABLE BQX-CQVER.

Specification of Letters Patent.

Eeitenterl Hie-r. 13.. 3913.

s iic'arlml mes December so, me. Serial so. scores.

To all 10. mm it mag concern: I

Be it known that 1, WILLIAM MILBRATH, a citizen or the llnited States, residing Lekefielcl, in the county of Jacksonv and State of Minnesota, have invented certain ow and useful Improvements in Detachable Box-@overs; and i do hereby declare the following to be full, cleegend exact description of the inwention such as will enable othersskilled in the art to which it zippertnins to make and use the ame.

My invention has for its object to provide as improved riet-eche ole cover for cracker boxes boxes of a similar character, will to this end. the invention consists of the novel devices and combinations of devices hereinafter described! 21ml defined. in the claims.

in the accompanying drawings ilustrete the invention, like clierecte inrlicete like parts throughout the severei views.

Referring to the drawings, Figure 1 is a. view in front elevation showing the improved cover secured to a box; Fig. 2 is a transverseverticel section taken on the line @11 m of Fig. i, with the movable member of I the cover shown in en openpositicn; Fig. 3

is a longitudinal vertical section taken on the line :0 o of Fig. 2; Fig. ls r ght end elevation of the parts as shown in Fig. 1;

Fig. 5 is a. detail View on an enlarged scale showing one of the so-called lock levers, one of which 'is in a released position and the other thereof is in 2. locked position, 'ith some parts broken away and other parts shown in section; Fig. 6 is a, detail View, on enlarged scale, in section, taken on the line m :8 Fig. 5; F i is detail view, on an enlarged scale, in section, taken on the irregular line :r" as of Fig. 5; and Fig. 8 is e cleteil view. on an enlarged scale in section, taken on the .iihc a1 Fig. 2. I

The It inrlicetes an ordinary cracker box with its original cover removed therefrom, and having in place thereof, one of the improved detachable covers. The her; 1 is so positioned that the improved cover secured thereon will constitute the from; of I the box for the purpose of displaying the coirtents Within the box at a better advantage. The improved ietaclmble cover comprises a pair of duplicate sections 52 end 8, each comprising a rectangular Woocle i frame and a glass panel These two sections are h means spring hinges 5, as

which ShO '11, three in number. Each hinge 5 is in the form of a. single piece of spring Wire ccilcrl no; form a pair of reverselv wound spring coils 8.- The ends of the spring Wires which form th singers 5 are looped at 'Z' and the intermediate portions thereof, between the spr ng coils 6, are looped at 8 and project in 'a reverse direction from the looped ends 7. The loops 7 are secured to the cover 2 end the loops 8 are secured er; the cover sec tion 3 by means oi'z' screws 9 passed therethrough. These spring hinges 5 tend to yieldingly hold cover section 3 in its closed position. v l

The cover section 2 is cletechebly secured to the E02. 3;. by means of a pair of levers l0 mounteii in open seats 13. for-meal i i the underside of the vertical side member the rectangular frame of the cover sections 2 and 3 and the levers are pivotelly secured in the seats 11 by means of pivot grins 12 passed. through the rectangular frame or the section 2 and through the enlarged lower ends of the levers 10. The seets 11 are of e depth equal to the thickness of the levers 10 mounted therein so that the inner feces of the rectangular frames of the cover sections 2 ancl 3 will lit closely on to the oi the hot; 1 and form e -tight jointbetwecn the improved. cover and the box 1, levers 10 hevetheir-outer vertical eclge glortions bent laterally to form it stop flange 13 adapted to engage the outer faces of the ends of the box-11150 limit the inward swinging movement,of!tl1e levers 10. Each lever 10 is provided, iii the vicinity of its pivotal connection, with; e barb I l laterally and in- Warclly projecting from the stop flange 15, and each lever 10 is further provided with an interned barb l5 projecting in the 0pposite direction from the herb 1%. By refil erence to Fig. 5, 1twlll he hoteci that the barbs l4 :ire loccterl above the pivotal cora nection of the levers l0 and the herbs 15 are located below the some. {Elie pivotal connections 12 of the'levetjl. l0 ere so located with respectto the loo; 1 that when the lovers l0 ere turned into" c position as indice'tecl by the right hand lever 10 in Fig. 5,

the barbs 1e and 15 will embrace the adjacent eclge portion of the box 1 to permit the cover sections to be placed upon the box 1 anal when the levers were turned into e. position as inclicatejey the lever 10 at the left hand in Fig. o ihe'berbs let emi ill-Wi l These 1 Figs 2, 5, and 6.

Means for holding the cover section in difierent open positions is provided in the form of :1 vertically extended flat bar 17 seedgewise to one side of the rectangular frame of the cover section '2 by means of o pair of staples l8. lit-its inner intermedi ate edge portion, the her it? is cut away, he

iWeen the staples 18, to form on space 9 between the hair 17 and the adjacent face of the cover section cut away portion of the bin 1? is provided with plurality of ratchet-like teeth Cooperating with the teeth 20 is a link 2i formed from o single rod bent upon itself and With its free ends terminating in loops 22 pirotally connected to the cover section 3, directly above the loop bar 17, by means of a pair of staples 23 The intermediate portion ot the link :21 Works Within the open space 1.9 and adapted for engagement with. the teeth 20 when the cover section 3 is in an open position, best shown in Fig. a To release the link 21 from the teeth 20, {L gravity positioned releasing. lever 9A is piv otally connected at its upper end to the upper staple 18. This releasing lever 24.- is preferably made channel-shaped in cross section and embraces the lock bar 17, best shown in Fig. 8, end when in a normal posilion covers the sides of the teeth 2O 01 the bar 1?. closed position the intermediate portion of the link 21 will hang loose within the open space 19, but when the cover sect-ion is openedby inc-ens oi a lillOl) 25 secured thereto, the link will be guided downward by the open space 19 and engage one of the teeth 20 and thereby hold the cover section 3 in an open position against the tension of the spring hinges 5. fit the same time, the link 21 engages the teeth 2G, it will swing the releasing lever past the teeth 20 into a set position, as best shown in Fig. 2. To

, close the cover section 3 under action oi the 5 all that i'leocsser w to spring hinges ever 24.,

knee or The lower vertical When the cover section 3 is in a oose-e3 is provided and is in the form of a multi plici'ivy of interlocking fingers :26. These fingers 28 are, es shown in Figs. and l,

preferably formed from thin metal strips alternately secured at their opposite ends by means of staples 2T driven into the h0rizontiil members of the rectangularframes of the cover sections 2 and 3 to which the hinges ii are secured. At their free ends the fingers 26 of each series are connected by means of '21v small rod What I claim is:

l. The combination with a box and a detachable cover therefor, of a lever pivotally connected to said cover and having a pair of rcversclv projecting barbs in the vicinity of its pivotal connect-ion, said lever arranged to work between said box and cover, said barbs being arranged to ez'nbrace one of the sides ol said box, when said lever is turned into one position and to be forced into the opposite faces of the embraced side of said box when said lover is turned into another position, substantially as described.

3. lllic combination with a box and a detachable cov r theref r, of a pair of levers pivotallv conncetecl l0 Salli; cover and each thereof having a pair of reversely projecting" barbs in the vicinity of its pivotal connection, said levers arranged to work between said box and cover, said pairs of herbs biiing arranged to embrace the sides of said box when said levers are turned into ohe position and to be forced into opposite faces of the embraced sides of said box when said levers are turned into another position, substentiall'v as described.

3. The combination with a box and a (letochabic cover therefor, of a pair of levers pivotaliv connected to said cover and each thereof having a pair ofreversely projecting barbs in the vicinity of its pivotal connection, said levers arranged to Work between said box and cover, said pairs of herbs being" arranged to embrace the side's of sand. box when said levers ore turned into one position and to be forced into opposite feces of the embraced sides of said box when said lovers are turned into another position, and means for locking said levers to hold said barbs engaged with said box, substantially described.

i. The combination with a box and a detachable cover therefor, comprising a pair o'l' sections hinged one to the other, of a pair of lovers pivotzilly connected toutbe under side oi one of said cover sections and Workins: over the upper edge of said box, each of said s having a pair of barbs laterally lion of said lever, with directii'ine Wndirmlly spaced with respect to i faces of the embraced sides of said box when I In testimony whereof I affix my signature said levers are mqved into another position, in presence of two witnesses.

and lockspivotally connected to the free v I ends of said levers and adapted to engage I ILLIAM HILBRATH' 5 the sides of said box to hold said barbs en- Witnesses:

gaged with said box, substantially as de- Jon): F. PLETZ, scribed. 1 H. W. J ONES. 

